Paste tube with measuring device and captive cap



July 18, 1933.

H. A. SCHELL 1,919,044

PASTE TUBE WITH MEASURING DEVICE AND CAPTIVE CAP Filed April 12, 1932 A?fit 77 L /6 [NVEN T012 M11 0?. fkcZZ Patented July 18, 1933 marshHAERYA. sciintri, or riirriannicr is, paansvtvanra PASTE TUBE VJITIEMEASURING BEVEGE AND CAPTIVE CA'P Application filed April 12,

in my Patent #LS l-Sfidfi, dated March 8,

Another ob -est of the invention is to pro- 7 vide a paste time havingan automatic measuring (lei ice to wh ch a captive cap is coned forfinally closing the outlet or mouth the tube.

A further object of the invention is to provide a captive cap slidablyconnected with. the incasurii device which cap is spring acated indirection for normally moving the cap from the primary valve disc,closure or head of he measuring cre ice and the movement of said capbeing such that it will project aoove the primary valve disc, closure orhead or at leastreach a location where the inner edge of the cap will beadj acent said valve disc, closure or head in order not to interferewith the removal of the con tents or paste of the tube after beingmeasuredi: still further object of theinvention is to provide in adevice of the kind described, a

measuring device consisting of a secondary closure or valve discoperable within the tube toward and away from the neck or outletthereof, a stem connected with the said sec ondary closure or valve discand extending through the outlet or-mouth of the tube, a

primary closure, valve disc or head on the outer end of the stem tolimit the inward movement of the secondary closure or valve disc, saidhead also acting as the means by which the secondary closure or valvedisc may be initially moved and carried throughout a portion of itsstroke by the paste during its .jectinent from the tube, a post outsideof the primary closure or valve disc, a cap slidably mounted on saidpost for'connection with the neck of the paste tube, which cap isnormally forced outward by a spring between the secondary closure andsaid cap,-and means on the outer end of the post to limit the outwardmovement of the cap.

With these and other ends in view, this invention consists. in thedetails of construction 1932. Serial No. 6'04E,67'7.

and combination of elements hereinafter set forth and tl'ienspecifically designated by the claims. 7 v r. ,t

In orderuthat those slrilled'in the art to which ,thisin'ventionappertains may under-f stand how to make and use the same-,1 will descbe its construction in detail, referring nnerals to the accon'ip'anyin-gdrawing. formingpart of this application, in which i for the captive capbut with the latter and its spring removed; s V

In carryi'ng outmy invention as herein embodied, 10 represents aflexible, pliable, collapsible paste holding tube of any ordinary,usi'ia-l orwell n0wn construction in cluding the body 11 whichiii-particular is the collapsible portion, and an end wall1 2 providedwith a neck 13 preferably criterion ly threaded and havii'ig an outletor mouth 14 which, while not absolutely essential, I prefer to surroundby a conical seat 1 5 and another seat 16 is provided by the innersurface of'the end wall 12., x

The measuring device 1-7, essentially, includes a secondary closure orvalve disc 18 for operation within the tube and for'movement toward andaway from the outlet or mouth 14 or the seat 16, in particular, whichsaid secondary closure or outlet willenga-ge at the end of theoutward'stroker A stem 19 is carried by the secondary closure or valvedisc 18 and preferably comprises afemale member 19fandainale memfber 19of a: compression rivet, one of said members, as: the female member 19,-being l is a virtical longitudinal sectional formed with the secondaryclosure or valve disc 18 and the other 01' male member 19 being forn edwith the primary closure, valve disc or head 20. Of course it will beunderstood that any other suitable form of stem for connecting thesecondary and primary closures may-be used. While the closures may be'ofany suitable construction and configuration, it is preferable that theyboth be of conical or frusto-conical shape as illustrated and I found inactual practice that the bestresults are obtained when at least theprimary closure, valve disc or head 20 is of conical or frusto-conicalshape, The valve disc or head 20 which constitutes the primary closurecoacts with the seat 15 to close'the mouth or outer end of the outlet 14when the paste tube is not in use and said primary closure is normallymaintained in a closed position by a cap to be presently described.

The operation of the measuring device, the parts so far described, isthe same as that set forth in the above referred to patent. As a cap isto be used with the tube in order to hold the measuring device in itsinward or inoperative position and also prevent contamination of thecontents of the tube from outside sources as well as preventing accidental ejectment of the contents of the tube, I have found it advisableto provide means to guard against the cap becoming mislaid or lost andhave evolved a means for anchoring the cap to the measuring device insuch a way that said cap will not interfere with the operations of saidmeasuring device and the ejectment of the contents of the tube.

To the above ends 1 have provided the measuring device with an anchoringpost 21,

preferably comprising the male member 21 and the female member 21-2 of acompression rivet. One of these members, as the male member 21, may beformed with the primaryclosure, valve disc or head 20 and the other orfemale member 212 is provided at its outer end with a flange 22. 'Iffound desirable a lug 23 may be formed at the base of the post 21.

On the post 21 is slidably mounted a cap 24: which will fit over and canbe secured to the neck 13 of the tube and for purposes of illustration,said cap is shown internally threaded for engagement with the externalthreads on the neck 13. In order to slidably mount the cap 24 on thepost 21, the end wall ofsaid cap is provided with a hole 25 throughwhich the post projects and the sliding movement of said cap is limitedin one direction by the primary closure, valve disc or head 20, and inthe other direction by the flange 22 at, the outer end of the post. p

A spring 26 of any suitable or desirable type, shape or configuration,is located between the primary closure, valve disc or head 20, and theinside-of the end wall of the cap 2 1 and where said spring is of thehelical type as herein illustrated it surrounds the post 21 and the lug23 and said spring is preferably produced from material having adiameter less than the height of the lug 23 so that when the cap 2 1 istelescoped over the neck 13 of the tubeand said spring contracted, theend wall of the cap 24 will engage the lug 23 without actually bindingthe spring between said end wall of the cap and the primary closure,valve disc or head 20.

From the foregoing description, it will be.

obvious that the cap 2% is anchored or held captive upon the post 21although having a limited sliding movement which will permit said cap tobe telescoped over and fastened upon tne neck 13 of the tube after theprimary closure 20 is seated upon the outer end of the tube neck andwill also permit said cap to be moved outward by the spring away fromthe primary closure 20 as soon as said cap is released from the tubeneck.

In operation, the measuring device and captive tube are positioned asshown in Fig. 1, when the tube is first filled with paste and also aftereach use thereof. lVhen it is desired to obtain some paste from thetube, the cap 24 is first released or backed oil from the neck 13 of thetube at which time the spring 26 will move said cap 2% to the outer endof the post 21 as shown in Fig. 2, but the measuring device will remainin the position shown in Fig. 1.

Now by squeezing the tube so as to collapse the walls thereof, some ofthe paste or contents of the tube will be expelled or ejected and saidpaste will act upon the primary closure, valve disc or head 20 and beginto move the same outward and the flow of the paste toward the outletwill also act upon the secondary closure or valve disc 18 so that themeasuring device will be carried along in a straight line until thesecondary closure 18 engages the end wall 12 and more particularlytheseat 16 thereby cutting off any further flow of the paste.

The cap 2 4 being held in its outer position by the spring 26 will bemoved along with the measuring device so out of the way.

That portion of the paste lying between the end of the neck and theprimary closure 20 may be removed and each time the device is operatedin this manner the quantity of past that can be removed will be thesame, thus providing for the accurate dispensing of predeterminedquantities of the contents of the tube.

As soon as the dispensed paste has been removed, the measuring'deviceand the cap 24: may be reset by moving the cap toward the neck of thetube which will cause the primary closure 20 to seat itself upon theouter end of the neck and thereafter the as to be practically springwill be compressed to permit the cap to be fastened upon said neck. 7

i might be well to state that the several parts of the invent-iondisclosed herein may be made of metal, fibre, hard rubber or othersuitable material or some of said parts may be made of one material andthe other parts of another ordifferent material and various changes maybe made in the relative sizes or proportions or shapes andconfigurations.

Of course I do not ish to be limited to the exact details ofconstruction as herein shown, as these may be varied within the limitsof the appended claims without departing from the spirit of myinvention. 7

Having thus fully described my invention what I claim as new anduseful-is 1. A measuring device and captive cap for paste tubes,comprising a stem slidable longitudinally through the outlet of acollapsiole paste tube, a secondary closure on the inner end of saidstem to control the discharge of paste from the tube, a primary closurefixed to the outer end of the stem to be carried along by thedischarging paste for moving the secondary closure to a closed position,a post ext-ending outwardly from the primary closure, a cap for threadedconnection with the neck of said tube and slidably mounted on the post,means at the outer end of the post to prevent displacement of the capfrom said post, and means to move said cap outward along the post uponbeing released from the neck of the tube.

2. A measuring device and captive cap for paste tubes, comprising a stemslidable longitudinally through the outlet of acollapsible paste tube, asecondary closure on the inner end of said stem to control the dischargeof paste from the tube, a primary closure fixed to the outer end of thestem to. be carried along by the discharging paste for movingthe'secondary closure'to a closed position, a post extending outwardlyfrom the primary closure, a flange on the outer end of the post, a capslidably mounted on the post between the primary closure and the flange,and a spring surrounding the post between the end wall of the cap andthe primary closure to move said cap outward along the post.

3. The structure set forth in claim 2, in combination with a lug at thebase of the post and of a height greater than the diameter of thespringmaterial r 4. In a device of the kind described, a tube including an-endwall and a neck having an outlet therethrough, a stem formedfrom themembers of a compressible rivet, a closure at each end of said stem, oneof said closures cooperating with the interior of the end wall of thetube to control the discharge of paste through the outlet and both ofsaid members to be carried along by the discharging paste whereby thestem will be retained in substantially a centralposition andthe innermember moved-into complete engagement with the inner surface of said endwall, a post extending from the outer closure and formed from theelements of a compression rivet, a flange on the outer end of said post,

a cap for the tube and adapted to be fastened to the neck thereof andslidably mounted up on said post between the flange and the ad- 1 jacentclosure, and a spring to move said cap outward along said post. HARRY A.SCHELL.

